Novel Zn2SnO4 hierarchical nanostructures and their gas sensing properties toward ethanol

Zhe Chen; Minhua Cao; Changwen Hu

doi:10.1021/jp111785t

Novel Zn₂SnO₄ hierarchical nanostructures and their gas sensing properties toward ethanol

Zhe Chen, Minhua Cao^*, Changwen Hu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

127 Citations (Scopus)

Abstract

In this work, highly ordered Zn₂SnO₄ three-dimensional flowerlike superstructures assembled with nanorods have been synthesized by a facile one-step hydrothermal route at 180 °C. The products were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and selected-area electron diffraction. The morphology of the final products was found to depend strongly on the concentrations of EDA and CTAB used. A possible mechanism for the formation of self-assembled Zn₂SnO₄ flowerlike superstructures is proposed. In addition, the novel Zn₂SnO ₄ three-dimensional superstructures exhibited good gas-sensing properties that are even better than those of the competing binary metal oxide ±-Fe₂O₃ and In₂O₃ sensors. The excellent gas-sensing properties make this material interesting not only for use in sensor devices, but also for a number of related electrochemical applications.

Original language	English
Pages (from-to)	5522-5529
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	115
Issue number	13
DOIs	https://doi.org/10.1021/jp111785t
Publication status	Published - 7 Apr 2011

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Chen, Z., Cao, M., & Hu, C. (2011). Novel Zn₂SnO₄ hierarchical nanostructures and their gas sensing properties toward ethanol. Journal of Physical Chemistry C, 115(13), 5522-5529. https://doi.org/10.1021/jp111785t

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AB - In this work, highly ordered Zn2SnO4 three-dimensional flowerlike superstructures assembled with nanorods have been synthesized by a facile one-step hydrothermal route at 180 °C. The products were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and selected-area electron diffraction. The morphology of the final products was found to depend strongly on the concentrations of EDA and CTAB used. A possible mechanism for the formation of self-assembled Zn2SnO4 flowerlike superstructures is proposed. In addition, the novel Zn2SnO 4 three-dimensional superstructures exhibited good gas-sensing properties that are even better than those of the competing binary metal oxide ±-Fe2O3 and In2O3 sensors. The excellent gas-sensing properties make this material interesting not only for use in sensor devices, but also for a number of related electrochemical applications.

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Novel Zn₂SnO₄ hierarchical nanostructures and their gas sensing properties toward ethanol

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